I had that exact same conversation with a conservative friend. He went on a rant about how the government was spying and tracking everyone, and I asked him why, if he was so worried about being tracked, he wasn't even more upset about tech firms tracking just about everything he does. Through his phone they know where he is all the time, what his daily movements are, where he shops, where he eats out, who he talks to, what he says, etc. And through his PC/laptop they know what he buys, what he looks at, what he reads, what he comments on, what he watches, what sort of medical issues he has, etc. And through all that they have a regularly-updated, very detailed profile of pretty much everything about him.